On April 22 at 6:04 p.m. the Calbuco volcano in Chile began erupting for the first time since 1972. The volcano spewed ash and pumice for at least 90 minutes as lava flowed from the main vent. Another ...

When Alaska's Redoubt Volcano rumbled to life three years ago, researchers rushed to the scene to deploy radio sensors to catalog and map lightning within the plume. The readings, the team now reports ...

Volcanic lightning photos are some of the most impressive out there, in my opinion. Volcanic lightning is a striking and rare phenomenon that occurs during some volcanic eruptions. As ash, rock and ...

Volcanic lightning is a striking and multifaceted phenomenon that occurs during explosive eruptions, when vigorous interactions between fragmented ash particles, volcanic gases and environmental ...

Triggered by lightning in thunderstorms, whistler waves are radio waves that are channelled thousands of kilometres around the world via ducts in the magnetosphere. As Ian Randall reports, these ...

The dramatic volcanic eruption on a remote island in Indonesia's North Sulawesi province on April 17 threw a fiery-red column of lava, incandescent rock and ash as much as 3 km (2 miles) into the sky.

Observers watching the eruption of Volcán de Fuego in Guatemala last month were treated to an unexpectedly dazzling show when lightning appeared to strike the active volcano. Videos of the scene have ...

The Mount Ruang volcano in Indonesia’s Ruang Island erupted multiple times on Wednesday, spewing ash, smoke and lava coupled with intense and rapid volcanic lightning while prompting thousands to ...